Zhu meanwhile sends his general Kang Huaizhen…
908 CE
Zhu meanwhile sends his general Kang Huaizhen to put Li Sizhao under siege at Lu Prefecture.
Kang builds walls and trenches around Lu Prefecture to cut off communications with the outside, and subsequent relief forces that Li Keyong sends under Zhou Dewei's command, while having some minor successes against Later Liang forces, are unable to lift the siege.
Li Keyong has fallen seriously ill by spring 908.
He entrusts Li Cunxu, whom he designates as his heir, to his brother Li Kening, Zhang Chengye, Li Cunzhang, the officer Wu Gong, and the secretary general Lu Zhi, while repeatedly stating to Li Cunxu that the immediate urgency after his death will be to rescue Li Sizhao.
He then dies and is succeeded as the Prince of Jin by Li Cunxu.
When Li Cunxu eventually declares himself the emperor of a new (or, renewed, under his view) Later Tang Dynasty in 923, he will honor Li Keyong as Emperor Wu with the temple name of Taizu.